Watch Hawaii Five-0 Season 9 Episode 21 online via TV Fanatic with over 5 options to watch the Hawaii Five-0 S9E21 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, CBS All Access, and CBS All Access (Via Amazon Prime).
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On Hawaii Five-0 Season 9 Episode 21, Five-0 investigates the murder of a man whose body may hold the key to a 20-year-old case involving a kidnapped girl.